(anatomy) Synonym of sinoatrial node.
Sinoatrial node shown at 1. The rest of the conduction system of the heart is shown in blue.
(anatomy) Synonym of sinoatrial node.
Figure 2: Low magnification stained image of the SA node (center-right on image) and its surrounding tissue. The SA node surrounds the sinoatrial nodal artery, seen as the open lumen. Cardiac muscle cells of the right atrium can be seen to the left of the node, and fat tissue to the right.